Mount Moses

"The Chapel of the Holy Trinity, built in 1934 (on the location of the original chapel built in 363 and rebuilt by Justinian in 530), is located on the summit, but is not open to the public, though it is said to enclose the rock from which God made the tablets of the Ten Commandments. There is also a small mosque and a cave where Moses is thought to have waited to receive the Tablets. Of course, the summit also provides a breathtaking view of the surrounding mountain ranges and valleys. While the monuments on the peak of Mount Musa are well known, there are a number of other monuments and historical site located on the mountain, many of which are located along the stairway, and on the surrounding mountains. "
http://www.touregypt.net/featurestories/mountsinai.htm